The box at the top left of each page says
Space - for Children - is the main website which will later be transferred to wpengine.
Forget "will later be transferred to wpengine."

I am just as confused as he is!
Space - for Children - is the main website which will later be transferred to another host
The website for their parents
https://space-for-children-s-parents.webnode.co.uk/
is being transferred to this site..